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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2019 Matthias Beyer <mail@beyermatthias.de> and contributors
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version
// 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
use std::io::Write;
use libimagstore::store::Entry;
use toml::ser::to_string;
use crate::viewer::Viewer;
use crate::error::Result;
pub struct StdoutViewer {
view_header: bool,
view_content: bool,
trim_right: bool,
wrap_content: Option<usize>,
}
impl StdoutViewer {
pub fn new(view_header: bool, view_content: bool) -> StdoutViewer {
StdoutViewer {
view_header,
view_content,
trim_right: false,
wrap_content: None,
}
}
pub fn wrap_at(&mut self, wrap: usize) {
self.wrap_content = Some(wrap)
}
pub fn trim_right(&mut self, trim: bool) {
self.trim_right = trim;
}
}
impl Viewer for StdoutViewer {
fn view_entry<W>(&self, e: &Entry, sink: &mut W) -> Result<()>
where W: Write
{
if self.view_header {
let header = to_string(e.get_header()).unwrap_or_else(|_| String::from("TOML Parser error"));
writeln!(sink, "{}", header)?;
}
if self.view_content {
let content = if self.trim_right {
e.get_content().trim_end()
} else {
&e.get_content()
};
match self.wrap_content {
Some(limit) => for line in ::textwrap::wrap(content, limit).iter() {
writeln!(sink, "{}", line)?;
},
None => writeln!(sink, "{}", content)?,
}
}
Ok(())
}
}
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